support code for configuring ceph and cinder
site.pp.example documentation for ceph configuration variables
core.pp changes for ceph support
added caveat about reloading prior OSD nodes
further clarification about reloading an OSD
change rbd user to admin
Merge branch 'multi-node' of https://github.com/CiscoSystems/grizzly-manifests into cinderceph

Conflicts:
	manifests/site.pp.example
git cruft
ceph configuration was forced onto all compute nodes. I added a new variable
to explicitly set this option on demand instead.
Merge pull request #113 from CiscoSystems/cinderceph

support code for configuring ceph and cinder